Free Secure Password Generator — Cryptographically Random

What Makes a Strong Password?

Password strength is determined by two factors: length and character variety. A 16-character password using all four character types (uppercase, lowercase, numbers, symbols) has approximately 10²⁸ possible combinations — even the fastest computers cannot crack it by brute force within a human lifetime.

How Our Generator Works

Unlike simple Math.random()-based generators, our password generator uses window.crypto.getRandomValues() — the Web Crypto API built into all modern browsers. This generates true cryptographic randomness seeded from hardware entropy. Each character is selected independently using an unbiased modulo operation on 32-bit random integers.

Password Security Best Practices

• Use a unique password for every account — reusing passwords across sites is the most common cause of account compromise
• Use a password manager (1Password, Bitwarden, KeePass) to securely store generated passwords
• Enable 2FA wherever possible — a second factor protects your account even if your password is compromised
• Minimum 12 characters for regular accounts; 20+ for banking, email and work accounts
• Never share passwords via email, SMS or chat — use a proper credential-sharing feature in your password manager

Frequently Asked Questions